Valve.



e. E. HUXLEY.

VALVE.

APPLICATION FILED IEB. 23, 1907.

V 32eme,

2 SHEETS-SHEET 1.

Patented Sept. 21, 1909.

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VALVE. APPLIOATION FILED TBB. 23, 1907.

Patented Sp. 21, 1909. z sums-SHEET 2.

@NTFU STAFF@ FFFGE.

CHARLES E. HUXLEY, F BUFFALO, NEW YORK.

VALVE.

Application filed February 23, 1907.

Specication of Letters Patent.

Patented Sept.. 2li, 19319).

Serial No. 358,792.

To all whom it' 'may concern: l

Be it known that l, CHARLES E. Humeur, a citizen of the United States, of Buffalo, in the county of Erie and State of New York,

l have invented certain new and useful llinlin rotative plug valves and the invention consists in the matters hereinafter set forth and more particularly pointed out in the apf pended claims.

My invention is herein shown as applied' to that. type of valve commonly known as a blowbtl' valve wherein the closure is made of generally spherical form and is provided with a through-out that is adapted, by rotation of the closure, to register with the through-ports of the valve casing or shell.

Among the objects of the invention is to provide an improved seat for the closure embracing packing devices by which a steam or `fluid tight joint is provided between the clol sure and the seat: to provide means for connecting the stein with the closure-in such manner that the closure is movable toward and from its/ seat relatively to the stern; to provide means for cleaning the valve from substances which tend to reinainin the hollow closure and in the Casing, and to Otherwise generally improve the construction and operation of valves of this character.

.ks shown in the drawings :-Figure 1 is an axial section of the valve embodying my improvement, showing the closure in its open position. Fig. 2 is a `similar view showing the closure in its closed position. Fig. 3 is an axial section, taken on line 3-3 of Fig. 2. Fig. Llis a perspective sectional view of one form of .compressible packing gasket for the annular valve seat. Fig. 5 is a like view of another form of packing gasket. Fig. 6 is a similar vie-w of the rigid ring of the seat which supports the compressible gasket. Fig. 7 is a'n enlarged sectional view of the metal and .conipressible members of the packing device showing the manner in which the valve closure fits thereon. Fig. S is a perspective view of the valve stem. 4

As shown in the drawings, 10 designates a generally cylindric valve case and 11 a spherical closure or ball therein which is provided with a through-port 12. ln the l illustrated construction thevalve is adapted for double connection with pipes leading to spaces of unequal and varying pressures, and the closure or thereof. rl`he provision for double connection comprises two interiorly threaded, hollow plugs 13, 13, that enter the ends of the casing-and have screw-threaded engagement therewith. rll`he bores of said hollow plugs constitute the inlet and outlet ports 14, la of said casing or shell. ln some instances, as where the valve is adapted to be connected at oneend with a pipe communicating with a pressure space and discharges at its other vend into the atmosphere, but a single pipe connection and a single packing is employed.

l5 designates a valve-stem which is connected at its inner end with the valve-plug and extends outwardlytherefrom through an opening in the casing wall Aand ahollowf -neck 16. A stuffing-box comprising the partsY 17 and 18A prevents the .escape of steam or l fluid from the casing outwardly around the stem.

The packed seats at both sides of 'the closure are alike in their construction and the following description of one answers both. Fach seat .device vcomprises a rigid ring 22, made preferably of metal, and a compressible gasket 27, both held in place between suitable shoulders 2O and 21, the former formed by the inner end of the hollow plugl 13 and the latter by an annular interior offset of the casing. The packed seats embrace novel features are made as follows:

rlhe ring 22 is formed with an exterior annular' ledge or flange 23 adapted to lit flat against said shoulder 21. The ring is out away at its inner end to form an interior, inclined annular face 24 constituting` a portion of the sea/t for the closure as will hereinafter more fully appear. Said ring 22 is further provided at longer, inclined, interior annular surface 25 andalso .with a shorter exterior, inclined annular surface 26, as more clearly shown in Fig. It3. The compressible gasket 27 is formed with a flat outer end for engagement with .the shoulder at the inner end of the hollow plug 13. At its inner end the gasket is provided with an annular groove of general V-shape in cross-section, forming its outer end with a ball'is packed on both sides for yof construction and 2o to form a flange 32 that is embeddedin the compressible gasket of the packing, as more clearly illustrated in Figs. 4 and 7 and conannular surface 29 which fits against the eX- -terior inclined, annular surface 26 of the ypacking rings. r1`he A gasket is also formed to provide at its inner end, radially inside I. the inclined annular surface 28, a short inwardly` and laterally inclined surface 30 which, when fitted to the ring 22, is gener-l ally parallel withl the inclined orconical seat 24 of said ringand constitutes ay portion of the valve seat against which the valve closure fits.y

31 designates a ring or sleeve which fits f closely Vwithin the gasket 27 and is made of such strength as to resist inward collapsing of the gasket when the closure is pressed up against'the same. The ring or sleeve 31 isv turned radially outwardly at its inner end stitutes the radially inner portion of the valve seat. The final seat ofthe va1ve,when heavy pressure is'exerted thereon, is composed'in part of the outer ring 22, the flange 32 of the inner ring or sleeve 31, and the intermediate face 30 .of the compressible gasket. When the valveyis first assembled the closure .does not press against the ring 22,

1 `but in the presence of pressure and heat the gasket is compressed sufficiently for the closure to be (forced against the inclined or conical seating surface 24 of said ring 25 so that the parts constituting the seat produce a composite seat. The compressible' gasket is, therefore, protected on both sides by the ri 'd rings. Moreover, the said rings receivey the greatest wear duelto wire drawing of steam when the valve is moved from its closed to its open position.' The internal supporting ring or sleeve 31 is made of a length toextend outwardly beyond the packing or seat rings and fits closelyin the inner endof the hollow plug 13.

In Fig. 5 I haveshown a form of compressible gasket differing lin itsl structure from that shown in Figsl, 2, 3 and 4. In this form of device, the cornpressible gasket 33 `is made of rubber and` is reinforced or centrally supported by a ring 34 that. -is made of a length equal to the length of the gasket. The inner part 35 of said gasket 33 is hardened and 1s vulcanized to the internal supporting ring,.wh i le the outer part 34thereof is .relatively softv so as to t closely and reliably the interior wall of the valve casing. The material of'said ring is further strengthened b A an annular layer 36 of canvas orI other brous material which isfattached to the rubberduring the vulcamzed process and therefore forms a permanent part thereof. Inv both forms of the 4 packed seat it will be-obsrved thatthe compressiblel i esami gasket 27 or 33- `is forced by the-screw threaded hollow plug inwardly between the ring 22 on the one side 'and the rings. 31 or 34 on the other side against the closure so as to insure a firm and reliable fit of said gasket against the closure. Moreover, said pressure has also the effect of pressing the outer partof the gasket firmly against the inner wall of the casing due to the wedging action of the inclined surfaces 26 of the ring and 29 of the gasket. Said closureis connected with 'the stem'15 in such manner that itis movable tow-ard and fromits seat relatively to the stem so that it readily follows the Wearing seat. As before stated, iffthe valve be designed to operate with pressure on one side only,but one packed seat is employed, as `the pressure which'holds the closure to its seat is in one direction only. When connected to operate in' connection with spaces having variable pressures two packed seats are employed. Y

Referring now to the manner of introducing the stem 15 into the casing and attaching the same to-the closure, the same is made as follows -The closure f is provided at `one,

side thereof with a groove 37 and the stem is provided at its inner end with awfiat eX- tension or wing 38 which enters said groove, whereby is provided 'an interlocking connection by whichA the closure is rotated through rotation of the stem. The stem is also provided in rear of said extension or wing 38 with an annular ange 39 which fits in a suitably shapedannular recess in the inner wall of the casing laround the opening therein through which the stem extends,

thereby forming a bearing for the stem andl alsol providing between the rearlfac'e of the viange and adjacent surface of the wall a fluid tight joint. The stem is inserted into the casing before the closure, the packed seat and its associated hollow plug 13 lare in place, the stem being of such length that it may readily pass downwardly into and be inserted through the neck 16 from inside the casing. Thereafterl the closure is dropped into the open end of the casing in such position that the wing or extension of the stem ,enters said 4groove of theclosure. Thereafter the packed seat is inserted into place and the screw-plug screwed vinto the casing to force the seat home. This construction permits movement of the closure relatively to the stern in the direction lof the central axis of the casing, and thereby permitsl the closure operating under th'e action of the closure and. also the interior of theA casing of materiall tending to remain in said forcing steain or like c leaiiiiig agent through the casing and closure port at a time when l i l the port is 'in the proper position to receive the steam or other cleaning jet. Said iinprovements may be tion herein shown. This improvement consists inproviding the valve casing walls with openings 40, 40 with which are connected suitable pipes 41, 41, iiicates with steanilor like tluid niider pressure, while the other communicates with a waste-space. Y cut-ofi' valves 42. lVhen ita is desired to clean the valve, the closure. is turned to the position shown in Fig. 3 to bring the throughport. in line with the openings ll() ot the casin'g and thereafter the valves 42 are opened with the evident result ot' through the valve,

matter that tends to cling cleaning away all thereto.

l claim as my invention g l. A blow-oitl valve of that class in which the closure is held against its seat by pressure of the fluid, the flow of which the valve controls, comprising a casing provided with o ppositely arranged .inlet and outlet branches, a spherical closure therein provided with a through-port and an annular seat engaged by the spherical face of the closure when the closure is in its closed posit-ioii, the closure being subjected on the inlet side of the valve to the pressure ot' the liquid in a manner to torce the opposite tace ot' the closure against the seat, a stein extending through the casing t'or rotating the closure, the closure being provided with a. groove which is open at its end and the stein being provided with a lug which engages the groove, whereby the closure is bodily movable toward'and from its scat and is held engaged with its seat by liquid pressure, at least one of theI branches of the. casing being arranged to permit the closure to be inserted therethrough into the casing at a time when the stein isin place, and the grooved portion of the closiiie being arranged to pass over the lug ot' the stein to connect the valve and stem. y

2., A, blow-oli' valve ot that class in which the closure is held against its seat by pressure ot' the tluid, the iiow oi which the valve controls, comprising a casing provided with inlet and outlet branches, a spherical closure therein provided with a throngliport, an annular seat located between one ot the branches and said ing provided with an interior annular shoulder, and outside 'ot' saidmannular'shoiilder with a screw threaded plug, between which and the shoulder the valve seat is held lxedly in place., a stem extending through the ing for rotating the closure, the closure beone ot which commu- The pipes 41 ai'e provided with fluid to be forced closure, the casing beapplied to forms otl holloW plug valves differing from the const-rucn i ing arranged to peri'nit the closure to be inl, i l 1 l l l l i l l, l |i i i i through an opening in said ing provided with a groove and the iimcr end of the stem being provided with a lug which engages the groove, thereby ail'ording a rotative interlocking connection between the stein and closure, while permitting the closure to bodily move' relatively to the stein toward and from its seal, the said closure and the branch in which it is contained be- 4. ln a valve a casinor irovided with a revmovable annular seat, a spherical closure engaging said seat, a stem extending outwardly casing, and an annular flange on said stein engaging an inwardly opening recess in the inner face otI the casing wall, `said stein being of a length to be inserted into the casing and passed outwardly through said opening, the stem being detachablyconnected with the closure.

5. A valve comprising a casing provided with an induction passage, a tubular plug in which is formed the eduction passage of the casing, said plug entering and tixed in said casing, a spherical, rotative valve closure in said casing provided with a through- 100 port, and an annular seat between said hollow plug and an annular interior shoulder of the casing -which opposes the inner end ot' said plug, said seat comprising a rigid ring and/a coinpressible gasket and plug, and the seat being formed partly on said gasket and partly on said ring.

6. A valve comprising a casing provided with an induction passage, a tubular plug in which is formed the eduction passage of the lio casing, 4said plug entering and being tiXed in said casing, a spherical, rotative valve closure in said casing provided with a through-port, and an annular sait between between the ring said hollow plug and an interior shoulder ot' 113 the casing, said seat comprising a rigid ring resting onl said shoulder, a compressiblc gasket between the ring and inner end oi said `plug and an internal supporting ring within the gasket,

prising in part said rings and in part the portion ot the gasket between said rings.

7. A valve comprising a casing provided with inlet and outlet passages, a spherical, rotative closure in said casing and an annular seat between said closure and outlet passage, said seat comprising an internal and an external rigid ring separated adjacent to the closure, and an annular conipressible gasket between said rings engaging the closure, said internal ring being provided at itsinner end with a flange which isci'nbedded into the seat face of said gasket. v 8. A valve comprising a casingprovided with inlet and outlet passages, a spherical, rotative closure in said casing and an an` nular seat between said closure and outlet passage, .said seat embracing an internal and an external rigid ring separated adjacent to the closure, anda compressible gasket between saidrings engaging said closure, the external ring being formed at, its outer end to form an annular inclined or wedgefsurface facing said` internal ring and between which said gasket'is compressed.

9. A valve comprising a'v casing provided with inlet and outlet passages, a spherical, rotative closure in saidA casing and an annular seat between said closure and outlet passage, said seat embracing an internal and `an external rigid ring separated adjacent i to the closuie, and a compressible gasket between said rings engaging said closure, the external ring being formed at its outer end with annular, oppositely, inclined surfaces,

vone facing the internal ring and the other the casing wall, and the gasket being formed with an annular groove of general inverted V-shape in cross-section tted over the inclined surfaces of the external ring and with an annular surface engaging said closure.

10. A valve comprising a casing provided f with inlet and outlet passages, a spherical, rotative closure in said casing and an annular seat between said closure and outlet passage, said seat embracing an internal and an external rigid ring separated adjacent to the closure, a coinpressible gasket between said rings engaging said closure, the external ring being formed at its outer end withl annular, oppositely, inclined surfaces, one facing the, internal ring and the other the casing wall, and the gasket being formed with an annular groove of general inverted V-shape in cross-section fitted-over the inclined surfaces of the external ring, and

with an annular surface engaging said closure, and means for pressing said gasket against said external ring.

11. An annular seat for Valves comprising I an' internal and an external rigid ring separated at the seat face and formed to provide between them an annular wedge opening and a compressible gasket having an annular wedge portion between said rings and constituting at its inner end av portion of the seat face. j f

12. An annular seat for valves comprising an internal and an external rigid ring sepa-y rated at `the seat. face and formed to provide between them an annular wedge opening and a compressible gasket having an annular wedge portion between said rings and constituting at its inner end a portion ofi the seat face, said internal ring being provided of said compressible gasket.

13. An annular seat for valves comprising y an internal cylindric ring, an exterior ring formed at its outer end to provide opposing, oppositely facing, annular inclined surfaces, and an annular coinpressible gasket provided with two annulawdge portions, one fitting between the4 internal ring and the opposing inclined surface ofthe external ring and forming with said rings the seat face, and the other fitting the radially outer inclined annular surface of said external rin f lg. An annular seat forvalves 'comprising an internal cylindric ring, an exterior ring formed at its outer end to provide op posing, outwardly facing,- annular, inclined surfaces, and an annular compressible gasket provided with two annular wedge portions, j

one fitting between the internal ring and the opposing A ring an forming with said rings the seat face, and the other fitting the radially outer inclined annular surfaces of, said external inclined surface of the external ring, said gasket being made loffrubberand vulcanized on said internal ring.

15. An annular seat for valves comprising an internal cylindric ifing, an exterior ring forward at its outer end to `provide opposing, outwardly facing, annular inclined surfaces,

.and an annular compressibley gasket `provided with two annular wedge portions, one

' fitting between the internal ring and the opposin inclined surface of theV externali ring `and orniing 'with said rings the seat face, and the other fitting the radially outer inclined, annular surfaceof said external rino said gasket being made of rubber and vu vcanized [on said internal ring, the radially outer(v Wedge portion of the gasket bein made softer than the inner portion thereo 16. An annular seat vfor 'Valves comprising an internal cylindric ring, an exterior ring formed at its outer end to rovide op` posing, outwardly facing, annu ar inclined surfacesand an annular compressible gasket provided with two annular wedge portions, one fitting between the yinternal ring and the opposing inclined surface of the .external ring and forming with said rings the seatface, and the other'tting theradially outer inclined, annular surface of said ex-V ternal ring, said gasket being made 'of rubf berand vulcanized on said internal ring, the

radiallyouter wedge portion of the gasket being made softer than the inner portion thereof, and an annular fibrous facing web applied to the'outer end of said gasket.

17. A valve com rising a casing provided with oppositely irected vinlet and outlet br-anches,. a spherical closure in lthe casing'` between said branches and rovided with a through-port, a stem exten ing through an 25 through-port, a stem extending through an opening in the casing for rotating the closure., annular seats located one between each branch and closure, there being lin each branch an outwardly extending interior shoulder and a screw threaded plug, between i which parts the seat is held in place and the l valve being provided with a groove and the stem being provided at its inner end with a l and the stem i end with a lug engaging the groove whereby the closure may move toward and from either of said seats relatively to the stem, at least one of said branches and the seat therein being arranged inserted intoV and removed from the casing through said moved from In testimony,

lug engaging the groove whereby the closure may move toward and from either of said seats relatively to the stem. l 18. A valve comprising a tubular casing, hollow plugs entering and having screwthreaded connection with the ends of said casing, a spherical closure between said plugs, annular seats located one between each plug and the closure, said casing being l opening in the casing for rotating the closure', branch and closure, there being in each branch an outwardly extending interior Shoulder and a screw tween which parts the i, and the valve being provided annular seats located one between each threaded plug, beseat is held in place with a groove being provided at its inner to permit the closure to be branch when the seat is rethe branch.

that 1 claim the foregoing provided with interior annular shoulders as my invention ll affix my signature in the opposing said plugs between which and said presence of two witnesses, this th day of 2o plugs the seats are fixedly held in place. November A. D. 1906.

- 19. A valve comprising a casing provided i with oppositel .directed inlet and outlet branches, a s erical closure in the casing between said Ibranches and /provided with a CHARLES E. HUXLEY.

Witnesses 

